Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Better off in a lower gear? (city cruising)

JRMichler · 09-21-2011, 10:48 PM

I find that knowing throttle position is not very useful, especially at low RPM. I watch MAP - Manifold Absolute Pressure. It's the opposite of manifold vacuum.

My 2.8L engine does not seem to lug. It does shake at low RPM and high MAP.

09-21-2011, 10:48 PM	#12 (permalink)
JRMichler Master EcoModder Join Date: Feb 2011 Location: Phillips, WI Posts: 1,018 Nameless - '06 GMC Canyon 90 day: 37.45 mpg (US) 22 Maverick - '22 Ford Maverick XL 90 day: 43.95 mpg (US) Thanks: 192 Thanked 467 Times in 287 Posts	I find that knowing throttle position is not very useful, especially at low RPM. I watch MAP - Manifold Absolute Pressure. It's the opposite of manifold vacuum. My 2.8L engine does not seem to lug. It does shake at low RPM and high MAP.